<div class="app-view {{ viewClass || '' }}">
  <div class="app-view-head">
    <div class="app-view-head-wrapper" *ngIf="title || extra">
      <div class="app-view-head-title">{{ title }}</div>
      <!-- <div class="app-card-extra" *ngIf="extra">
        <ng-container *ngTemplateOutlet="extra">{{ extra }}</ng-container>
      </div> -->
    </div>
  </div>
  <div class="app-view-body">
    <ng-content></ng-content>
  </div>
</div>